Executing native code in the browser

Question

I have a library written in C++ which works with raw HID input (mice, touchpads, etc.).

I would like to create an extension, plugin, Java applet or whatever (preferably for Google Chrome), which would allow me to use the library in the browser on the client-side. But I do not have previous experience and I am not sure how to do it and what to learn to achieve that.

I read that NPAPI support will be removed from Google Chrome.

Please tell me how can I do that?

What I have:

1. The library itself (for Mac OS, Windows and Linux)

2. The bindings Java, Python and Node.js

I was thinking of making use of the Node bindings in order to use the library in the browser.

Answer 1

Native Client might work, but likely not unless what you need is accessible via native client APIs; you don't have full access to the system with Native Client.

Native Messaging may be a better fit, since you could actually write it using python or node.js if you want to (though it will require python or node to be installed to use it).

https://developer.chrome.com/native-messaging

FireBreath2 (still in sparsely documented beta) supports native messaging.